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Current of 10 A and 2 A are passed throu...

Current of 10 A and 2 A are passed through two parallel wires A and B respectively in opposite directions. If the wire.A is infinitely long and length of the wire B is 2m, the force acting on the conductor B which is situated at 10 cm distance from A will be

A

`4pi xx 10^(-7) N`

B

`5 xx 10^(-5) N`

C

`8pi xx 10^(-7 )N`

D

`8 xx 10^(-5) N`

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